The cells at the surface of hydra undergo mitosis and form a mass called a bud. Mitosis continues in the cells of the bud and this grows into a new individual. The same division happens during asexual reproduction or vegetative propagation in plants.
Find out more about the six main symptoms of acoustic neuromas (vestibular schwannomas). The symptoms include hearing loss, tinnitus, vertigo, imbalance, pressure, and facial weakness and numbness. Skip Navigation
Causes of Acoustic Neuroma. What exactly causes acoustic neuroma is unknown. Certain risk factors -- such as age and a family history of neurofibromatosis type 2 -- may make a person more likely to develop this condition. However, people with risk factors do not always get acoustic neuroma, and people without risk factors can get it as well.